Paris

Just east of the magnificent buttresses of the Cathédrale Notre Dame, across the Pont Saint-Louis, lies an island sanctuary in the middle of this chic, bustling city: Île Saint-Louis. The one-way streets are narrow, with views of the Seine River...

So, you think you know Paris? There are hundreds of memorable streets and boulevards in the City of Lights. But, for my money, Rue Montorgueil is the best. It is compact, only three blocks long, with a metro stop at each end. In between, you have...